111323431423 has 4 divisors (see below), whose sum is σ = 114914509888. Its totient is φ = 107732352960.

The previous prime is 111323431399. The next prime is 111323431433. The reversal of 111323431423 is 324134323111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111323431423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111323431391 and 111323431400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111323431433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1795539186 + ... + 1795539247.

It is an arithmetic number, because the mean of its divisors is an integer number (28728627472).

Almost surely, 2^111323431423 is an apocalyptic number.

111323431423 is a deficient number, since it is larger than the sum of its proper divisors (3591078465).

111323431423 is an equidigital number, since it uses as much as digits as its factorization.

111323431423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591078464.

The product of its digits is 5184, while the sum is 28.

Adding to 111323431423 its reverse (324134323111), we get a palindrome (435457754534).

The spelling of 111323431423 in words is "one hundred eleven billion, three hundred twenty-three million, four hundred thirty-one thousand, four hundred twenty-three".